Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 3301 more...
- ItemBB026776 - Great Northern Engineering Drawing: Machinery Below Deck, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026777 - Great Northern Engineering Drawing: Shop Plan - Machinery Detail, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026778 - Great Northern Engineering Drawing: Shop Plan - Erection Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026779 - Great Northern Engineering Drawing: Shop Plan - Machinery Detail, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026780 - Great Northern Engineering Drawing: Shop Plan - Machinery Detail, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026781 - Great Northern Engineering Drawing: Shop Plan - Operating House, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026782 - Great Northern Engineering Drawing: Shop Plan - Stairs, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026783 - Great Northern Engineering Drawing: Shop Plan - Bearing Support, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026784 - Great Northern Engineering Drawing: General Plan and Detail Machinery, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1917
- 691 more...